The Hornady Critical Defense .410 Gauge Triple Defense ammunition delivers innovative personal protection performance with its unique projectile design. Each 2-1/2 inch shell contains one 41 caliber FTX slug with patented Flex Tip technology plus two 35 caliber round balls all engineered to hit man-sized targets at seven yards for maximum defensive effectiveness.Hornady Critical Defense .410 Gauge Triple Defense ammunition20 rounds per box 10 boxes per case (200 rounds total)2-1/2 inch shell length750 fps muzzle velocity with 294 ft-lbs energyPatented Flex Tip technology for controlled expansionHigh antimony round balls resist deformationBoxer primers for reliable ignitionThis specialized defensive load is optimized for close-range home defense scenarios where reliable stopping power is critical. The FTX slug engages shotgun rifling for improved accuracy while the round balls provide additional penetration making this an ideal choice for personal protection with any .410 gauge shotgun.